Dataset: On the American spider species formerly placed in Trachelas, with the proposal of the new genus Neochelas and a revision for southern South America (Araneae: Trachelidae)

The phylogenetic dataset combines data from six traditional target markers (12s, 16s, 18s, 28s, co1, and H3), complementing legacy data with new sequences. The rooting of the tree was made between Gnaphosidae and the rest of the taxa (Phrurolithidae and Trachelidae). The extraction of sequences from Sequence Read Archive (SRA) phylogenomic sequences was made as in Ramírez & Grismado (2024). The phylogenetic analyses were performed using IQ-TREE 2.3.6 (Minh et al. 2020). Models for each target-gene were selected by Bayesian information criterion with ModelFinder (Kalyaanamoorthy et al. 2017). We executed 20 independent runs of model optimization followed by tree estimation and selected the tree from the run with the maximum likelihood (the 20 tree topologies were identical, except for the internal resolution of Trachelopachys, with low support). The models selected for the sequence data were as follows: TIM2+F+G4 (12s), TIM2+F+I+G4 (16s), TNe+I+G4 (18s), TIM3+F+R3 (28s), GTR+F+I+G4 (co1), and TPM2+I+G4 (H3). The branch support was estimated with 1000 rounds of ultrafast bootstrap (Hoang et al. 2018). Trees in Newick format. Alignments in Fasta format. Funded by FONCyT PICT 2019-2745 to Martín Ramírez.